Antique radios, Old Time Radios
B442/O
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Country:
Netherlands
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| Identical to |
B442/O
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| Similar
Tubes |
Other base:
B442
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er)
Top contact screw type.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.1 Ampere / Direct / Battery = |
| Information source |
L'ABCDaire des lampes de TSF des jeunes années p. 42a
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 150, p. 213
Taschenbuch zum Röhren-Codex 1948/49
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Just Qvigstad
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